To simplify an exchanging and handling work of a document or data and to reduce warehouse stock by postponement of a delivery day as much as possible as to a system and a method for managing an order reception when producing an ALC (autoclaved lightweight concrete) panel product used for, for example, a wall, a roof, a floor, a partition and the like of a building in response to an order from a customer.

The order reception management system which inputs an order reception data of an ALC panel product whose order is received from a customer into a computer and performs order reception management, is provided with an automatic order reception confirmation document transmission program automatically transmitting an order reception confirmation document to a customer based on the order reception data, and an automatic shipment instruction transmission program automatically transmitting a shipment instruction to the customer based on the order reception data.